66611909 is an odd 8-digits composite number following 66611908
and preceding 66611910 . In scientific notation, it is written as 6.6611909 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 52703856 positive integers (up to 66611909) that are relatively prime to 66611909.
66611909 has 8 divisors, whose sum is 81984000
The reverse of 66611909 is 90911666
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
sixty-six million six hundred eleven thousand nine hundred nine
Scientific notation
6.6611909 × 10^7
Engineering notation
6.6611909 × 10^6
Prime Factorization
7 × 13 × 731999
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
66611909
Product of the distinct prime numbers
The prime factorization of 66611909 is 7 × 13 × 731999.
Since it has a total of 3 prime factors.
6 , 6 , 24 , 8 , 965 , 583 , 5711 , 6609 , 6546 , 8122 , 125472 , 939614 , 7040673 , 7302875 , 44729822 , 53610846 , 174530197 , 982593733 , 2162960894 , 997034178
n×2
133223818
n×3
199835727
n×4
266447636
n×5
333059545
n÷2
33305954.5
n÷3
22203969.666667
n÷3
16652977.25
n÷5
13322381.8
n2
4437146420624281
n3
2.955667935903E+23
n4
1.9688268358059E+31
n5
1.3114731402346E+39
2 √n
8161.6119118713
3 √n
405.36908689971
4 √n
90.341639966692
5 √n
36.703744751026
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-66611908
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 66611909 can be divided by 8 positive divisors.
The sum of these divisors (counting 66611909) is 1, the average is 0.125.
Base
System
Value
2
Binary
11111110000110101011000101
3
Ternary
11122100020100202
4
Quaternary
3332012223011
5
Quinary
114023040114
6
Senary
10335420245
8
Octal
376065305
10
Decimal
66611909
12
Duodecimal
1a384685
16
Hexadecimal
3f86ac5
20
Vigesimal
10g69f9
36
Base36
13nq2t
md5
f532654b9084b4eb2a674144b4a62878
sha1
49eca7c0b86747a2cb981170fdf872f713486c4f
sha256
c6b8a6fb1f8a220ac7f2c945429144ec26357c35b85719168f1fc67bb5db300e
sha512
fb1a3dc47933d95b40d23cf71e454d11c626f3a34dab97452e01df6860fb3086e8f7fa545659ca6579a2ffcadba47f4cb751a3567836698451c865abdb22cf60
ripemd-160
69043fa04cbb8db55f92add3da18c0f67499d697
Diameter
133223818
Circumference
418534967.91198
Area
1.3939706597935E+16
Volume
1.2380672898512E+24
Surface area
5.5758826391742E+16
Circumference
418534967.91198
Perimeter
266447636
Area
4437146420624281
Diagonal
94203465.123362
Surface area
26622878523745686
Volume
2.955667935903E+23
Space diagonal
115375210.77715
Perimeter
199835727
Area
1.9213407602859E+15
Altitude
57687605.388577
Surface area
1.9213407602859E+15
Volume
3.4832880673544E+22
Height
31401155.041121